Train car 1 has a mass of 6.5 x 10^4 kg and is sitting stationary on a track. Train car 2, with a mass of 9.30 x 10^3 kg, collides with the first train car from behind at a speed of 8.94 m/s. Neglect any work done by nonconservative forces.
A. What is the speed of Train car 1 after the collision?
B. What is the speed of Train car 2 after the collision?